| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 12 |
5.6%
|
| 2 | 5 |
2.3%
|
|
| 3 | 19 |
8.8%
|
|
| 4 | 17 |
7.9%
|
|
| 5 | 32 |
14.9%
|
|
| 6 | 27 |
12.6%
|
|
| 7 | 36 |
16.7%
|
|
| 8 | 32 |
14.9%
|
|
| 9 | 17 |
7.9%
|
|
| 10 | Very effective | 18 |
8.4%
|
| 11 | Don't know | 31 | |
| Sysmiss | 16 |